Solar Energy
Is the collection of light photons from the sun. Solar cells (photovoltaic cells) can be found on solar panels, these cells collect and absorb the photons which is then converted into electrons. Thus creating energy. One minute of sun light can produce the world's energy need for one year! (according to altenergy.org)
Wind Energy
Converting wind into a electricity to power homes and also the water system. Wind turbines are used to collect the kinetic energy from wind. An electric generator is connected to the blades of the turbine, every time the wind moves the blades it creates energy. To get the most out of wind turbines, they are located in areas where wind flows through constantly for example on the coast line.
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| Different forms of Wind Turbines |
Biomass Energy
The usage of plants (such as wood and crops), animal waste and/or garbage to create fuel and energy. The process to turn these materials into energy and fuel is a complex process. This method of energy poses danger for the environment because of the emission of greenhouse gases (though not as much as fossil fuel burning).
Hydroelectric Power
Dams are built to control the flow of water to create energy. Depending on how much electricity needed the dam's gate is either opened or closed. According to altenergy.org, water turbines can convert 90% of the water flow into energy.
Sources:
Toothman , J. (n.d.). How solar cells work . Retrieved
from http://science.howstuffworks.com
/environmental/energy/solar-cell4.htm
Wind basics. (n.d.). Retrieved from
http://www.eia.doe.gov
/kids/energy.cfm?page=wind_home-basics
Biomass an important source of renewable energy.
(n.d.). Retrieved from http://www.biomass.net/
